Add e2e testing setup (#163)

* Setup e2e testing

* Add user e2e tests

* Rename database host env variable to DB_HOST

* Force push (try to recover DB_HOST env)

* Rename db host env variable to `DB_HOSTNAME`

* Remove unnecessary `initDb` from test-utils

The current database.config is running the migrations:
`migrationsRun: true`

docker/.env.test

@@ -0,0 +1,16 @@
+DB_HOSTNAME=immich_postgres_test
+# Database
+DB_USERNAME=postgres
+DB_PASSWORD=postgres
+DB_DATABASE_NAME=e2e_test
+
+# Upload File Config
+UPLOAD_LOCATION=./upload
+
+# JWT SECRET
+JWT_SECRET=randomstringthatissolongandpowerfulthatnoonecanguess
+
+# MAPBOX
+## ENABLE_MAPBOX is either true of false -> if true, you have to provide MAPBOX_KEY
+ENABLE_MAPBOX=false
+MAPBOX_KEY=